Edit:// I also don't know when this believe ever should have existed. Or why it would have existed in the first place
During the Bush and Obama eras Europe was at least important as a staging ground for war in the Middle East, but the US wants to get away from putting boots on the ground there.
But now most of the common ground is gone, and the gloves are coming off
How you feel makes sense though. The US does not and has never had Switzerland's back (and vice-versa).
Nobody's under any illusion that this was a good decision, including the people that made this decision. It was just a means to an end, the end being lowering tarrifs on the EU.
There's still quite a few steps between the current state and the dominance of US cars on European streets. It's still an empty promise from the EU side.
Can't speak for my whole country, but the opinion among the people in my age group at least is that the US would expect a ROI on military interventions in Europe
Pretty much every government unfortunately.
From the media I can see it's only Germany who has a really weird relationship with the US. Switzerland, Italy, France, .. are pretty clear in what they think and how they will act.
See the debates about how the European funds (ReArm Europe) should be spent, and whether or not it should be allowed to be used to buy US equipment. Or the recent procurement of additional F35 (at least Belgium, Netherlands, Italy and Germany have ordered more).
Also, none of the re-arming plans seem to consider the assumption that the US logistics (airlift & tankers) could not be relied on.